/* アコーディオン */
.accordion-container {
    max-width: 520px;
}

.accordion-item {
    background-color: #fff;
    margin: 15px auto 10px;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.accordion-header {
    display: block;
    width: 100%;
    padding: 15px 20px;
    background-color: #fff;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 12px;
    font-weight: bold;
    color: #990000;
    transition: background-color 0.3s ease;
    position: relative;
}

.accordion-header:hover {
    background-color: #f0f0f0;
}

/* 矢印アイコン */
.accordion-header::after {
    content: "▼";
    position: absolute;
    right: 20px;
    transition: transform 0.3s ease;
    font-size: 12px;
}

.accordion-header.active::after {
    transform: rotate(180deg);
}

/* コンテンツエリア */
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: #fafafa;
}

.accordion-content table {
}
.accordion-content table td {
	padding: 5px;
	border: solid 1px #cccccc;
	background: #ffffff;
}

.accordion-content-inner {
    padding: 20px;
    color: #555;
    line-height: 1.6;
}

/* 開いた状態 */
.accordion-item.active .accordion-content {
    max-height: 500px; /* 内容に応じて調整 */
}